Looking for info on Köhler Mekra horn clock from the 50´s

[GoodOldRagtop60]

I was lucky to buy a Köhler Mekra horn clock. On the Internet I found some Information and Pictures.
I tried to fit it in an original horn button, but there is a little bit to much space for fitting it. (on an Oval horn button)
Has anybody a Picture from the back? Maybe theres a ring missing on mine.

There´s one on ebay, but I can´t see, how it is mounted.
Any help is appreciated.

Thanks,

Tobi

[GoodOldRagtop60]

[RareAir]

First, you’re fitting your clock in the wrong horn base. It’s designed to fit in the 1959-55 base which has a smaller ID

_________________
1947 Typ 11a
1954 Typ 117
1956 Typ 151
1959 Typ 117
1959 Typ 265
1961 356B
1966 Typ 151
1966 Typ 241

[GoodOldRagtop60]

Hey RareAir,
Thank you very much!
Do you know, what these clocks are worth?

Many Thanks from germany,
Tobi

[GoodOldRagtop60]

Is the chrome ring is still in the horn button housing when the clock is mounted?
I guess the spring stays in the housing?
I try to find a housing for test fitting.

Thanks,
Tobias

[GoodOldRagtop60]

Thankfully I got a cheap housing from Jacco (Carbage)!
But it still doesn't fit. There must be something missing.

I hope somebody can show a pic of the back.
At the moment I don't understand it

[GoodOldRagtop60]

This is how my clock look´s from the rear.
Could anybody compare or show a pic of another clock?